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Motor vehicle
4T80-E
A Hydra-Matic 4T80 transmission at the Ypsilanti Automotive Heritage Museum
Overview
Manufacturer
General Motors
Production
1993–2011
Body and chassis
Class
4-speed transverse automatic transmission
Chronology
Predecessor
Turbo-Hydramatic 125
Successor
6T70
The 4T80E is a series of automatic transmissions from General Motors. Designed for transverse engine configurations, the series includes 4 forward gears. The 4Txx family is an evolution of the original Turbo-Hydramatic 125 transverse automatic introduced in the 1980 model year "X" body.
The 4T80-E transmission is electronically controlled and features an automatic overdrive transaxle with an electronically controlled torque converter clutch. The 4T80 originally used a viscous clutch, but this was changed in 2005 to ECCC.
The 4T80 is built at Willow Run Transmission in Ypsilanti, Michigan.
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